Self-serve and check by key lock,申请号US19400340901-传众专利搜索

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发明名称	Self-serve and check by key lock
摘要
申请公布号	US2220786(A)	申请公布日期	1940.11.05
申请号	US19400340901	申请日期	1940.06.17
申请人	HAMPTON GRAINGER	发明人	GRAINGER HAMPTON
分类号	E05B35/08	主分类号	E05B35/08
代理机构		代理人
主权项
地址

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